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Home > Research > Publications & Outputs > Does the Kibble mechanism operate in liquid He-4?
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Does the Kibble mechanism operate in liquid He-4?

Research output: Contribution to journalJournal article

Published

Journal publication date05/2000
JournalJournal of Low Temperature Physics
Journal number3/4
Volume119
Number of pages8
Pages249-256
Original languageEnglish

Abstract

A rapid passage of He-4 through the lambda (superfluid) transition is expected (W.H. Zurek, Nature 317, 505; 1985) to result in the production of topological defects (quantized vortices) through the Kibble mechanism, the same process that is believed to have produced cosmic strings at the GUT phase transition of the early universe. But recent experiments (Dodd et al, Phys. Rev. Lett. 81, 3703; 1998) show that the density of vortices created, if any, seems to be smaller than predicted by a factor of at least 100. Possible ways of improving the sensitivity of the exoperiment are discussed.